Both Abner and Warren were hired by Henschel und Sohn as consultants from 1931 to 1934 to help design and develop steamengines suitable for trucks, busses and railvehicles.

This is a picture I found about Henschel steambusses, it's a schematic drawing of the different parts of the steam engine develped by Henschel und Sohn and the Doble brothers.

This is a picture I found on the web during my searches. It's the second model what went into production.

The diaries and other documents of both can be found in The Bancroft Library; University of California, Berkeley. Because there are copyright-issues to be solved there are no pictures available.

I also found a private library in Europa which will be contacted for pictures and other info concerning this subject.

For leads, info or questions, don't hesitate to send me an e-mail. Everything is appreaciated at this moment.

Back